EP0233394B1 - Adsorbeur pour purifier des gaz contenant du HC1 - Google Patents
Adsorbeur pour purifier des gaz contenant du HC1 Download PDFInfo
- Publication number
- EP0233394B1 EP0233394B1 EP86302984A EP86302984A EP0233394B1 EP 0233394 B1 EP0233394 B1 EP 0233394B1 EP 86302984 A EP86302984 A EP 86302984A EP 86302984 A EP86302984 A EP 86302984A EP 0233394 B1 EP0233394 B1 EP 0233394B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scavenger
- hci
- alumina
- gas
- promoter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002516 radical scavenger Substances 0.000 title claims description 56
- 239000007789 gas Substances 0.000 title claims description 42
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 51
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 24
- 229910001570 bauxite Inorganic materials 0.000 claims description 19
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 11
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- 238000007725 thermal activation Methods 0.000 claims description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 9
- 229910052749 magnesium Inorganic materials 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 4
- 150000004684 trihydrates Chemical class 0.000 claims description 4
- 239000000356 contaminant Substances 0.000 claims description 3
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 2
- 239000000463 material Substances 0.000 description 21
- 230000002000 scavenging effect Effects 0.000 description 14
- 238000005470 impregnation Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000746 purification Methods 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- -1 alkaline earth metal salt Chemical class 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000002407 reforming Methods 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000001833 catalytic reforming Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 159000000021 acetate salts Chemical class 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 229910009112 xH2O Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
Definitions
- HCI gaseous HCI
- a chlorine-promoted catalyst generally platinum
- HCI hydrogen-promoted catalyst
- This reforming operation also generates hydrogen which is usually recycled to the reforming reactor. Even if this recycled portion only contains the HCI impurity in small amounts, it can seriously interfere with the operation and can also cause corrosion upon contact with the moisture content of the gas.
- active alumina was found to be suitable as a scavenger for the removal of small quantities of HCI from gaseous streams.
- compositions comprising an alumina component and a salt or mixture of salts of alkali or alkaline earth metals as scavengers is known from US-A-4 323 544, but this use is disclosed in relation to the removal of nitrogen oxides and sulphur oxides from waste gases.
- sodium, potassium and the other alkali metals are disadvantageous as promoters for alumina, in comparison with calcium, magnesium and the other alkaline earth metals, because the alkali metal compounds associated with the alumina react with water vapour, which is almost invariably present in waste gases, causing these scavengers to disintegrate. This difficulty does not arise with the promoted scavengers of the present invention.
- the alkaline earth metal salt promoted aluminous materials of the present invention exhibit a significantly higher HCI scavenging property than the prior art scavengers and simultaneously exhibit an increased stability in the presence of moisture under the scavenging conditions generally employed.
- a process for purifying industrial gases containing HCI as a contaminant which comprises contacting gas, containing up to about 1% by volume of HCI, with an alumina-containing scavenger, is characterised in that the scavenger contains 0.5% to 45% by weight of alkaline earth metal, as a promoter, it is subjected to thermal activation prior to contact with the gas and, in the thermally-activated state, the scavenger exhibits a minimum surface area of about 50 m 2 /g and a minimum pore volume of about 0.3 cm 3 /g and in that contact between the HCI-contaminated gas and the thermally-activated scavenger is maintained until the HCI content of the gas reaches a predetermined threshold level, after which the scavenger containing the HCI impurity removed from the gas is recovered.
- the alkaline earth metal salt promoted alumina-containing scavenger contains 0.5 to 45% by weight of alkaline earth metal salt calculated as the metal.
- the alkaline earth metal present is calcium or magnesium.
- the scavenger can remove up to about 20% by weight of CI from gas streams contaminated with up to about 1 % by volume HCI.
- the alkaline earth metals can be added as their salts to the bauxite or alumina in a convention manner, such as by impregnation.
- Shaped promoted scavenger material can also be made by admixing the desired quantity of promoter with the bauxite or alumina, followed by shaping, for example, nod- ulization or extrusion, and subsequent thermal activation.
- alumina-containing material refers to both bauxite and to alumina (Al Z O 3.x H 2 O) derived from bauxite or any other alumina-bearing source, such as beneficiated clays.
- alkaline earth metal or "promoter” as used herein refer to the metals of Group IIA of the Periodic Classification of the Elements, the preferred alkaline earth metals being calcium and magnesium.
- Suitable alumina-containing materials which can be advantageously employed for making the promoted scavenger include both bauxite and Al 2 0 3 .xH 2 0, provided these materials meet certain criteria.
- bauxite when bauxite is utilized, it should have a minimum alumina (AI 2 0a) content of about 40% by weight, calculated on the basis of its dry weight; i.e. after ignition at 1000 ° C for 1 hour.
- the silica (Si0 2 ) content of the bauxite should not exceed 15% by weight on the dry basis.
- Suitable bauxites include those mined in the Caribbean, South America, Australia and Western Africa.
- alumina When alumina is utilized for preparation of the promoted scavenger, it can be derived from alumina trihydrate (Al ⁇ Os. 3H 2 0) manufactured by the well-known Bayer process or it can be a gel-type alumina made by the neutralization of a basic aluminum salt with an acid or an acidic aluminum salt with a base.
- Typical aluminas, suitable for use as the base material for the promoted scavenger include without limitation alumina trihydrate, pseudoboehmite, alpha alumina monohydrate and other well-known thermally-activated aluminas exhibiting gamma, chi-rho-eta, delta or kappa structures.
- the promoted scavenger after thermal activation, should exhibit a minimal surface area of 50 m 2 /gram, preferably having a surface area in excess of about 100 m 2 /g.
- the promoted scavenger should also have a minimum pore volume, again after thermal activation, of about 0.3 cm 3 /g, preferably in the range from about 0.4 to about 0.6 cm3 / g.
- alkaline earth metals suitable as promoters for the HCI scavenger are those in Group IIA of the Periodic Table and thus include calcium, strontium, magnesium and barium, calcium and magnesium being the most preferred metals.
- incorporación of the promoter in the alumina-containing material can be accomplished in the conventional manner, for example by impregnation or by admixture of the promoter with the alumina-containing material followed by shaping. If impregnation is employed as the means for promoting the scavenging capabilities of the alumina-containing material, then the alkaline earth metal is generally employed in the form of a water-soluble compound or salt.
- Suitable alkaline earth metal compounds and salts which lend themselves for impregnation from an aqueous solution include the hydroxides, nitrates, chlorides, acetates and the salts of other organic acids, those salts being preferred which can be readily decomposed to the corresponding oxides under relatively low temperature thermal activation without generating environmentally harmful offgases.
- Aqueous alkaline earth metal salt solutions can be employed or, if desired, the alumina-containing material can be in granular form and, after impregnation, the material can be shaped.
- the promoter can be admixed in dry form with the alumina-containing material followed by shaping into any desired form by the well-known shaping processes. Also, the promoter and the alumina-containing material can be condulized to form HCI scavenging nodules.
- the quantity of promoter to be added to the alumina-containing material can range from about 0.5% to about 45% by weight, based on the alkaline earth metal content of the promoted scavenger. Particularly good HCI scavenging results can be achieved when the promoter is present in the composite in an amount from about 1% to about 20% by weight, calculated as the metal and based on the weight of the composite.
- a thermal activation step is generally utilized for the preparation of the promoted scavenger.
- the thermal treatment is required particularly when the alumina-containing material utilized for the promoted scavenger is a bauxite in the unactl- vated state or an alumina of high bound and unbound water content, such as Bayer hydrate (AI Z O s .3H z 0) or gel alumina.
- the alumina-containing material used for making the scavenger composition is a previously activated alumina or bauxite
- impregnation with an aqueous promoter solution or shaping in the presence of water makes it necessary to subject the promoted scavenger to a thermal treatment step.
- the thermal treatment or activation step not only imparts increased activity to the scavenger, but also accomplishes the thermal decomposition of the alkaline earth metal salt to the corresponding oxides.
- temperatures in the range from about 150 ° C to about 500 ° C are utilized, depending on the decomposition temperature of the alkaline earth metal salts employed and the nature of the alumina-containing material used for the scavenger.
- the thermally treated or activated scavenger can be readily employed in the removal of HCI impurities from industrial offgases. Generally, removal is accomplished by providing an adsorber vessel charged with the scavenger and the HCI contaminated gases are conducted through the adsorber either in a down or in an upflow manner. The exit gas will be free of HCI which will be removed by the scavenger of the instant invention. It has been observed that the best scavenging activity can be achieved by treating gas streams containing up to about 1% by volume HCI impurity. Larger quantities of HCI impurity in the gas streams may cause premature saturation of the promoted scavenger with the possibility of having an undesired early break-through and consequent corrosion and environmental problems.
- the promoted scavenger of the invention is effective in removing HCI from gas streams containing the same as impurity in amounts less than 1.0% by volume to levels of less than 1 ppm by weight thus providing an offgas of significantly reduced HCI content. Further, it has also been found that if the HCI contamination of the gas is in the range from about 2 to about 4 ppm, the scavenger is still capable of reducing this very small HCI concentration to levels below the 1 ppm limit.
- Purification of HCI contaminated gas streams with the promoted scavenger is generally continued until the gas exiting from the purifying column is observed to have an HCI content above the desired level.
- the gas to be purified is conducted into a column filled with fresh promoted scavenger and the scavenger saturated with HCI is either discarded or employed for other purposes.
- the HCI contaminated scavenger can be subjected to a purification process involving dissolution of the alumina content and the recovery of the same.
- transitional alumina nodules having a chi-rho-eta crystal structure, were used as the alumina-containing material for the promoted scavenger.
- the transitional alumina nodules were prepared from alumina trihydrate by the method described in U.S. patent 3,222,129. Batches of these nodules, exhibiting a surface area of 360 m 2 /g and a pore volume of 0.48 cm 3 /g, were then combined with Ca, Mg and Ba promoters by the impregnation method using the water-soluble acetate salts of these alkaline earth metals. Impregnation was followed by drying at 110°C and subsequent thermal treatment at 400 ° C for 2 hours.
- Each impregnated batch of promoted scavengers was then tested for HCI adsorption capacity by charging separate adsorption columns with each type of promoted scavenger an using an HCI-contaminated reforming gas for purification purposes.
- the gas such as used in the catalytic reforming of hydrocarbons, contained 0.1% volume HCI and 1000 ppmv water vapor. Purification of the gas was carried out at room temperature until the break-through point which was established as 1 ppm HCI in the purified gas. The chloride content of the exhausted scavenger was then analytically determined. For comparison purposes a column filled with unimpregnated transitional alumina nodules was also used for HCI removal from the same type of gas as used for testing the promoted scavengers. The results were tabulated and are shown in Table I.
- bauxite was utilized as the alumina-containing portion of the promoted scavenger.
- the bauxite utilized has a composition shown in Table II.
- the bauxite was dried at 110°C, then ground to a suitable particle size.
- the ground bauxite was then admixed with an aqueous suspension of Ca(OH) 2 and the mixture was formed into adobe shapes by pressing.
- the adobes were dried at about 110 ° C for 1 hour, then subjected to thermal activation for about 1 hour at 400 ° C.
- the shaped and activated calcium-promoted bauxite scavenger was then charged into a column and HCI-contaminated gas was conducted through the column until break-through was observed by analyzing the gas exiting the column.
- the HCI-contaminated gas had an HCI content of 0.2% and a moisture content of 2000 ppmv.
- the exit gas had a less than 1 ppm HCI content until the break-through point was reached. Purification of the gas was accomplished at ambient temperature.
- a control test was also conducted with the same bauxite, however no promoter was used to increase its HCI scavenging ability. The results of the scavenging tests are shown in Table III.
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Industrial Gases (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/785,706 US4639259A (en) | 1985-10-09 | 1985-10-09 | Promoted scavenger for purifying HCl-contaminated gases |
US785706 | 1997-01-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0233394A2 EP0233394A2 (fr) | 1987-08-26 |
EP0233394A3 EP0233394A3 (en) | 1988-03-30 |
EP0233394B1 true EP0233394B1 (fr) | 1990-09-05 |
Family
ID=25136370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86302984A Expired EP0233394B1 (fr) | 1985-10-09 | 1986-04-21 | Adsorbeur pour purifier des gaz contenant du HC1 |
Country Status (6)
Country | Link |
---|---|
US (1) | US4639259A (fr) |
EP (1) | EP0233394B1 (fr) |
JP (1) | JPH0618639B2 (fr) |
AU (1) | AU576165B2 (fr) |
CA (1) | CA1239771A (fr) |
DE (1) | DE3673985D1 (fr) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4762537A (en) * | 1985-11-07 | 1988-08-09 | Aluminum Company Of America | Adsorbent for HCl comprising alumina and acid-treated Y zeolite |
DE3915934C2 (de) * | 1988-05-16 | 1999-08-12 | Ftu Gmbh | Mittel und Verfahren zur Reinigung von Gasen und Abgasen und ein Verfahren zur Herstellung dieser Mittel |
US5096871A (en) * | 1990-07-03 | 1992-03-17 | Alcan International Limited | Alumina-alkali metal aluminum silicate agglomerate acid adsorbents |
US5212131A (en) * | 1991-02-20 | 1993-05-18 | Innovative Research Enterprises | Low pressure drop filter |
US5316998A (en) * | 1992-05-05 | 1994-05-31 | Discovery Chemicals, Inc. | HCl adsorbent and method for making and using same |
JP3381739B2 (ja) * | 1993-09-21 | 2003-03-04 | 出光興産株式会社 | ハロゲンの吸着除去方法 |
FR2722111B1 (fr) | 1994-07-06 | 1996-08-14 | Rhone Poulenc Chimie | Procede de sechage d'un melange gazeux ou liquide a l'aide d'un adsorbeur compose d'alumine et d'un tamis moleculaire |
DE4433246A1 (de) * | 1994-09-19 | 1996-03-21 | Hoechst Ag | Verfahren zur Herstellung eines reversiblen Adsorbens |
US5688479A (en) * | 1994-12-22 | 1997-11-18 | Uop | Process for removing HCl from hydrocarbon streams |
FR2774606B1 (fr) * | 1998-02-11 | 2000-03-17 | Rhodia Chimie Sa | Procede d'elimination de composes halogenes contenus dans un gaz ou un liquide |
US6589494B1 (en) | 1998-03-31 | 2003-07-08 | Institut Francais Du Petrole | Process for eliminating halogen-containing compounds contained in a gas or liquid using an adsorbent composition based on at least one metallic element |
FR2776536B1 (fr) * | 1998-03-31 | 2000-04-28 | Rhodia Chimie Sa | Procede d'elimination de composes halogenes contenus dans un gaz ou un liquide avec une composition a base d'au moins un element metallique |
US6060033A (en) * | 1998-04-22 | 2000-05-09 | Uop Llc | Process for removing HCl from hydrocarbon streams |
CN1095388C (zh) * | 1998-11-24 | 2002-12-04 | 湖北省化学研究所 | 脱氯剂及其制备方法 |
US6200544B1 (en) | 1999-01-27 | 2001-03-13 | Porocell Corporation | Process for removing HCI from fluids with novel adsorbent |
US6207612B1 (en) * | 2000-01-03 | 2001-03-27 | Norton Chemical Process Products Corporation | Removal of impurities from hydrocarbon streams |
US6461411B1 (en) * | 2000-12-04 | 2002-10-08 | Matheson Tri-Gas | Method and materials for purifying hydride gases, inert gases, and non-reactive gases |
US6670296B2 (en) | 2001-01-11 | 2003-12-30 | Delphi Technologies, Inc. | Alumina/zeolite lean NOx catalyst |
US6624113B2 (en) | 2001-03-13 | 2003-09-23 | Delphi Technologies, Inc. | Alkali metal/alkaline earth lean NOx catalyst |
KR20040019397A (ko) * | 2001-08-08 | 2004-03-05 | 더 프록터 앤드 갬블 캄파니 | 증강된 활성의 도핑된 흡착재 |
EP1283072A1 (fr) * | 2001-08-08 | 2003-02-12 | The Procter & Gamble Company | Materiau adsorbant dopé à activité renforcée |
US7758837B2 (en) * | 2005-05-06 | 2010-07-20 | Uop Llc | Scavengers for removal of acid gases from fluid streams |
US20070116620A1 (en) * | 2005-11-21 | 2007-05-24 | Kanazirev Vladislav I | Halide scavengers for high temperature applications |
CN100453147C (zh) * | 2005-12-07 | 2009-01-21 | 西北化工研究院 | 催化重整再生气脱氯剂及制备方法 |
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FR2930559B1 (fr) * | 2008-04-25 | 2011-10-14 | Inst Francais Du Petrole | Elimination de composes chlores dans les coupes hydrocarbonees |
CN101804298B (zh) * | 2010-04-10 | 2013-03-27 | 太原理工大学 | 一种氯气捕消剂的制备方法 |
CN102485837A (zh) * | 2010-12-03 | 2012-06-06 | 中国石油天然气股份有限公司 | 一种高温脱氯剂及其制备方法 |
JP6496104B2 (ja) * | 2014-02-18 | 2019-04-03 | クラリアント触媒株式会社 | ハロゲン化合物吸収剤およびそれを用いた合成ガスの製造方法 |
CN107709242A (zh) | 2015-08-12 | 2018-02-16 | 环球油品公司 | 从气体料流中去除氯化物的组合物和方法 |
CN105664855A (zh) * | 2016-04-12 | 2016-06-15 | 苏州工业园区安泽汶环保技术有限公司 | 一种可除氯气的空气净化材料及其制备方法 |
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CN112619590B (zh) * | 2020-11-29 | 2022-12-09 | 上海绿强新材料有限公司 | 一种可再生型硫化氢吸附剂及其制备方法 |
WO2022162626A1 (fr) | 2021-01-29 | 2022-08-04 | Sud Chemie India Pvt Ltd | Nouvel adsorbant à faible coût ayant une capacité d'élimination de chlorure élevée |
EP4212604A1 (fr) | 2022-01-13 | 2023-07-19 | TotalEnergies One Tech | Compositions stabilisées comportant des oléfines |
WO2024013340A1 (fr) | 2022-07-14 | 2024-01-18 | Totalenergies Onetech | Production d'éthylène et de propylène à partir d'huile de pyrolyse plastique |
CN115141660B (zh) * | 2022-08-02 | 2023-07-21 | 江苏省环境工程技术有限公司 | 一种高炉煤气干式精脱硫系统及精脱硫方法 |
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US3222129A (en) * | 1962-02-26 | 1965-12-07 | Kaiser Aluminium Chem Corp | Method for producing active alumina nodules |
US3226191A (en) * | 1965-03-15 | 1965-12-28 | Kaiser Aluminium Chem Corp | Method of producing active alumina and the resulting product |
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US3853789A (en) * | 1971-03-26 | 1974-12-10 | J Warthen | Preparation of macroporous alumina extrudates |
US3760565A (en) * | 1971-07-19 | 1973-09-25 | Aluminum Co Of America | Anti-pollution method |
US3933978A (en) * | 1972-03-01 | 1976-01-20 | Adolf Margraf | Method of filtering dust-laden gases |
NL7307675A (fr) * | 1972-06-16 | 1973-12-18 | ||
FR2189101A1 (en) * | 1972-06-23 | 1974-01-25 | Rhone Progil | Hydrochloric acid removal from incinerator gases - by contacting with suspension of reactive and absorbent solid |
FR2205354A2 (en) * | 1972-11-03 | 1974-05-31 | Rhone Progil | Hydrogen chloride removal from gaseous incinerator emissions - by reacting with alkaline flue dust |
GB1452279A (en) * | 1973-02-27 | 1976-10-13 | Ici Ltd | Fluids purification |
US4045371A (en) * | 1974-05-07 | 1977-08-30 | Exxon Research And Engineering Company | Process for preparing a gas desulfurization sorbent |
JPS5130172A (en) * | 1974-09-04 | 1976-03-15 | Hitachi Shipbuilding Eng Co | Haikibutsunoshorihoho |
US4053558A (en) * | 1975-07-14 | 1977-10-11 | Stauffer Chemical Company | Purification of gas streams containing ferric chloride |
US4493715A (en) * | 1982-12-20 | 1985-01-15 | Phillips Petroleum Company | Removal of carbon dioxide from olefin containing streams |
CA1226858A (fr) * | 1983-05-16 | 1987-09-15 | James M. Maselli | Agents de sorption pour oxydes mineraux |
US4571445A (en) * | 1984-12-24 | 1986-02-18 | Shell Oil Company | Process for removal of sulfur compounds from conjugated diolefins |
-
1985
- 1985-10-09 US US06/785,706 patent/US4639259A/en not_active Expired - Lifetime
-
1986
- 1986-04-09 CA CA000506261A patent/CA1239771A/fr not_active Expired
- 1986-04-21 DE DE8686302984T patent/DE3673985D1/de not_active Expired - Fee Related
- 1986-04-21 EP EP86302984A patent/EP0233394B1/fr not_active Expired
- 1986-06-09 JP JP61132023A patent/JPH0618639B2/ja not_active Expired - Lifetime
- 1986-10-07 AU AU63564/86A patent/AU576165B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
CA1239771A (fr) | 1988-08-02 |
DE3673985D1 (de) | 1990-10-11 |
EP0233394A2 (fr) | 1987-08-26 |
US4639259A (en) | 1987-01-27 |
JPS6287244A (ja) | 1987-04-21 |
EP0233394A3 (en) | 1988-03-30 |
AU6356486A (en) | 1987-04-16 |
JPH0618639B2 (ja) | 1994-03-16 |
AU576165B2 (en) | 1988-08-11 |
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